The poll looked at charitable contributions as a percentage of net income and the percent of residents who gave. The company calculated net income through tax income data and took out total taxes paid, mortgage interest, mortgage points and mortgage insurance payments to get net income.

Overall Hamilton County residents averaged 25.2 percent contributions of their income and 47.9 percent of the population who contributed to charity.

"They performed well on both indices in the study, ranking fourth in the state for contributions as a percentage of income and 15th for contributors as a percentage of the population," said A.J. Smith, VP of Financial Education at SmartAsset. "Together, these factors helped Hamilton County crack the top 10 on the overall index."

This is the first year the study was administered.

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